I do agree that a style with discrete steps would also be appropriate.
To the other points, no, not all bar graphs do the same thing. Bar graph bars are often the width they are due to data binning, where the width has significance.
The graph was trivial, but made less clear by the 3D isometric projection. the spatial distortion is reduced but not canceled out by the space.
3D pie charts share the same failure. Yes, as long as the tilt is slight, they are still mostly readable. But it will make "closer" wedges appear larger and "farther" wedges appear smaller. It's visual dishonesty and unnecessary.
Just because one can finagle understanding out of a visualization does not make it a good visualization.
To the other points, no, not all bar graphs do the same thing. Bar graph bars are often the width they are due to data binning, where the width has significance.
The graph was trivial, but made less clear by the 3D isometric projection. the spatial distortion is reduced but not canceled out by the space.
3D pie charts share the same failure. Yes, as long as the tilt is slight, they are still mostly readable. But it will make "closer" wedges appear larger and "farther" wedges appear smaller. It's visual dishonesty and unnecessary.
Just because one can finagle understanding out of a visualization does not make it a good visualization.